State the refractive index of a lens that has a concave curvature of R = 80cm, a flat side, and produces a virtual image at 20cm with a real object at 40cm: a) 3.33 b) 1.0 c) 3.0 d) 1.33
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State the refractive index of a lens that has a concave curvature of R = 80cm, a flat side, and produces a virtual image at 20cm with a real object at 40cm:
a) 3.33
b) 1.0
c) 3.0
d) 1.33
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